The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 2021
Filed:
Nov. 23, 2018
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Eunju Park, Daejeon, KR;
Hansol Kim, Daejeon, KR;
Joong Jin Han, Daejeon, KR;
Hyun Woog Ryu, Daejeon, KR;
Kwonsu Jung, Daejeon, KR;
Yong Jin Jang, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 75/0259 (2016.01); C08G 75/0254 (2016.01); C08G 75/0281 (2016.01);
U.S. Cl.
CPC ...
C08G 75/0254 (2013.01);
Abstract
The present disclosure relates to a preparation method of a polyarylene sulfide, and this method may produce a polyarylene sulfide having properties equal to or higher than those of the conventional method at a high yield by adding an aliphatic amino acid hydrochloride in addition to existing materials for dehydration.